This is a like a sliding window to find the longest substr, if we put the letters in an array, then check the next letter, if it is in the array, then sliding the window, otherwise, put the value in the array set. code: classSolution:deflengthOfLongestSubstring(self,s:str)->int:#...
Python while Loops: Repeating Tasks Conditionally In this quiz, you'll test your understanding of Python's while loop. This loop allows you to execute a block of code repeatedly as long as a given condition remains true. Understanding how to use while loops effectively is a crucial skill for...
leetcode: python 3. Longest Substring Without Repeating Characters Longest Substring Without Repeating Characters Medium Given a string s, find the length of the longest substring without repeating characters. Example 1: Input: s = “abcabcbb” Output: 3 Ex......
日期 题目地址:https://leetcode.com/problems/longest-repeating-character-replacement/description/ 题目描述 Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing...
LeetCode 424. Longest Repeating Character Replacement Description Given a string s that consists of only uppercase English letters, you can perform at most k operations on that string. In one operation, you can choose any character of the string and change it to any other uppercase English ...
代码 classSolution(object):deflengthOfLongestSubstring(self, s):""" :type s: str :rtype: int """char_dict = {} s_len =len(s)iflen(s_len) ==0:return0iflen(s_len) ==1:return1head =0tail =0max_sublen =1whiletail <= s_len -1:ifs[tail]notinchar_dictorchar_dict[s[tail...
[LeetCode]3.Longest Substring Without Repeating Characters (medium),WelcomeToMyBlog3.LongestSubstringWithoutRepeatingCharacters(medium)Brutesolution因为TimeLimitExceeded不被AC维护两个index找出所有的window,O(n^2),每次都检查window内的元素是否有重复,最终导
【LeetCode】3. Longest Substring Without Repeating Characters 解题报告(Python & C++) 目录 题目描述 题目大意 解题方法 解法一:虫取法+set 方法二:一次遍历+字典 日期 题目地址:https://leetcode.com/problems/longest-substring-without-repeating-characters/description/...
Tutorials on machine learning, artificial intelligence, data science with math explanation and reusable code (in python… github.com or you may be interested in one of my recent articles: Scaling Isn’t Everything: How Bigger Models Fail Harder Are Large Language Models really understanding programm...
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